US 9,813,384 B2
Time-locked network and nodes for exchanging secure data packets
Wayne R. Howe, Irvine, CA (US); Jeffrey H. Hunt, Thousand Oaks, CA (US); and Angela Wai-an Li, Everett, WA (US)
Assigned to THE BOEING COMPANY, Chicago, IL (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Oct. 31, 2012, as Appl. No. 13/664,966.
Prior Publication US 2014/0122736 A1, May 1, 2014
Int. Cl. G06F 15/16 (2006.01); H04L 29/06 (2006.01)
CPC H04L 63/0428 (2013.01) [H04L 63/105 (2013.01); H04L 63/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for transmitting secure data packets through a node network, the method comprising:
establishing a predetermined schedule that identifies specific times at which each node in the node network along a predetermined pathway through the node network transmits secure data packets along the predetermined node pathway through the node network and specific times at which secure data packets transmitted along the predetermined node pathway are received at each node in the node network, wherein propagation delays between nodes along the predetermined node pathway are taken into account when determining the times at which each node along the node pathways is scheduled to receive the secure data packets, and wherein the each node transmits the secure data packets based on the predetermined schedule;
receiving unsecure data packets at a set of unsecure inputs and the secure data packets at a number of secure inputs in a node in the node network,
wherein the secure data packets are authorized to be sent to a number of secure destination devices, and
wherein the unsecure data packets are not authorized to be sent to the number of secure destination devices;
integrating the secure data packets and the unsecure data packets to form an output data stream based on the predetermined schedule;
sending the output data stream comprising the secure data packets and the unsecure data packets to a next node in along the predetermined node pathway until the secure data packets reach the egress node.